Loose ends inventory

[Brian Goetz]

Update:

>>  - Additional tweaking on range generators

Done.

>>  - Support for state-based cancelation (e.g.,
>> cancelWhen(BooleanSupplier))

Punted.

>>  - Support for content-based limiting (takeWhile, skipUntil)

Punted.

>> - Post-transform on Collector, and related Collectors tweaks.

Proposed design seems sound, proceeding.  One or two remaining 
mini-loose-ends (will cover these in more detail in a separate note):

  - Means for combining Collector+Function into a Collector with a 
finisher.  This shows up in groupingBy scenarios.
  - Extend Collector.of to allow setting of characteristics.

>> - Support for primitive stream concatenation

Done.

>> - zip

Punted.

>> Point lambdafications

Seems complete.

>>  - Moving stream() / parallelStream() to Iterable

Reduced to spliterator() only.  Presumed done unless someone comments on 
spec in next day or two.

>>  - Comparators

Done.

>>  - Rename Spliterators.iteratorFromSpliterator to iterator.

Done.

>>  - Pull up forEachRemaining from PrimitiveIterator.OfXxx into
> PrimitiveIterator, a la Spliterator.OfPrimitive.

Done

>>  - Add A[] toArray(IntFunction<A[]> generator) to Collection.

Punted.

New item: resource release.  Proposal under discussion.